An unexpected source of invertebrate community recovery in
intermittent streams from a humid continental climate

J 2019

An unexpected source of invertebrate community recovery in intermittent streams from a humid continental climate

PAŘIL, Petr, Marek POLÁŠEK, Barbora LOSKOTOVÁ, Michal STRAKA, Julie CRABOT et. al.

Basic information

Original name

An unexpected source of invertebrate community recovery in intermittent streams from a humid continental climate

Authors

PAŘIL, Petr (203 Czech Republic, guarantor, belonging to the institution), Marek POLÁŠEK (203 Czech Republic, belonging to the institution), Barbora LOSKOTOVÁ (203 Czech Republic, belonging to the institution), Michal STRAKA (203 Czech Republic, belonging to the institution), Julie CRABOT (250 France) and Thibault DATRY (250 France)

Edition

Freshwater Biology, Oxford, Wiley, 2019, 0046-5070

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10617 Marine biology, freshwater biology, limnology

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Full Text

Impact factor

Impact factor: 3.835

RIV identification code

RIV/00216224:14310/19:00110193

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1111/fwb.13386

UT WoS

000490904700007

Keywords in English

temporary rivers; tolerance; similarity; drying; global change

Abstract

V originále

1. Intermittent streams are naturally dominant landscape features of Mediterranean and arid regions, but also occur more and more in humid climates, such as in the Czech Republic. Organism abilities to cope with drying (i.e. resistance forms) have been quantified in naturally intermittent streams from Mediterranean and arid regions, in which long-term flow intermittence patterns have promoted physiological adaptations. In contrast, the capacity of aquatic communities to persist without requiring resistance adaptations under recent intermittent flow regimes in more humid climates is virtually unexplored, along with its contribution to community recovery upon rewetting. 2. Here, we addressed the ability of aquatic invertebrates devoid of specific desiccation-resistance forms (e.g. cysts or eggs) to cope with climate change-induced flow intermittence from rivers in continental climate. Owing to the high relative air humidity, the importance of riparian cover and the short duration of drying events, we expected taxonomically and functionally rich communities to persist in the dry streambed during phases with no surface water and to contribute to community recovery upon flow resumption. 3. To explore these ideas, we collected invertebrate communities in the riverbeds before, during and after drying from 10 intermittent rivers in the Czech Republic. We quantified the pool of organisms remaining alive in the dry riverbeds and determined its taxonomic and functional contribution to the recovery of benthic communities upon rewetting. 4. 83% of organisms collected, belonging to 22 taxa, were able to survive during the dry phase without producing desiccation-resistance forms. This pool of organisms contributed substantially both taxonomically and functionally to the quick recovery of benthic communities. The exponential decrease in taxonomic and functional richness implies an initial quick loss of sensitive taxa, while a pool of less sensitive taxa persisted long in the dry riverbeds hence contributing to the fast community recovery upon rewetting. 5. Survival rates of active aquatic macroinvertebrates devoid of specific desiccation-resistance adaptations have rarely been quantified. Likely promoted by benign environmental conditions prevailing on dry riverbeds in this study, their survival demonstrated the need to protect communities in dry riverbed and their adjacent riparian environments so that assemblages can recover rapidly from short periods without river flow. Riparian forest management along intermittent streams from continental climates could help conserve the value of dry streambeds as source of resilience for riverine communities.

Links

LTC17017, research and development project

Name: Validace bioindikačních metod jako nástrojů pro udržitelný management středoevropských vysychavých toků a přenos těchto metod do praxe (Acronym: InterStreaM)

Investor: Ministry of Education, Youth and Sports of the CR, INTER-COST

7AMB17FR011, research and development project

Name: Dopady vysychání na říční společenstva evropských toků z hlediska západo-východního gradientu (Acronym: DRYGRAD)

Investor: Ministry of Education, Youth and Sports of the CR

Citovat

PAŘIL, Petr, Marek POLÁŠEK, Barbora LOSKOTOVÁ, Michal STRAKA, Julie CRABOT and Thibault DATRY. An unexpected source of invertebrate community recovery in intermittent streams from a humid continental climate. Freshwater Biology. Oxford: Wiley, 2019, vol. 64, No 11, p. 1971-1983. ISSN 0046-5070. Available from: https://dx.doi.org/10.1111/fwb.13386.

@article{1545969,
   author = {Pařil, Petr and Polášek, Marek and Loskotová, Barbora and Straka, Michal and Crabot, Julie and Datry, Thibault},
   article_location = {Oxford},
   article_number = {11},
   doi = {http://dx.doi.org/10.1111/fwb.13386},
   keywords = {temporary rivers; tolerance; similarity; drying; global change},
   language = {eng},
   issn = {0046-5070},
   journal = {Freshwater Biology},
   title = {An unexpected source of invertebrate community recovery in intermittent streams from a humid continental climate},
   url = {https://onlinelibrary.wiley.com/doi/full/10.1111/fwb.13386},
   volume = {64},
   year = {2019}
}

TY  - JOUR
ID  - 1545969
AU  - Pařil, Petr - Polášek, Marek - Loskotová, Barbora - Straka, Michal - Crabot, Julie - Datry, Thibault
PY  - 2019
TI  - An unexpected source of invertebrate community recovery in intermittent streams from a humid continental climate
JF  - Freshwater Biology
VL  - 64
IS  - 11
SP  - 1971-1983
EP  - 1971-1983
PB  - Wiley
SN  - 00465070
KW  - temporary rivers
KW  - tolerance
KW  - similarity
KW  - drying
KW  - global change
UR  - https://onlinelibrary.wiley.com/doi/full/10.1111/fwb.13386
L2  - https://onlinelibrary.wiley.com/doi/full/10.1111/fwb.13386
N2  - 1. Intermittent streams are naturally dominant landscape features of Mediterranean and arid regions, but also occur more and more in humid climates, such as in the Czech Republic. Organism abilities to cope with drying (i.e. resistance forms) have been quantified in naturally intermittent streams from Mediterranean and arid regions, in which long-term flow intermittence patterns have promoted physiological adaptations. In contrast, the capacity of aquatic communities to persist without requiring resistance adaptations under recent intermittent flow regimes in more humid climates is virtually unexplored, along with its contribution to community recovery upon rewetting. 2. Here, we addressed the ability of aquatic invertebrates devoid of specific desiccation-resistance forms (e.g. cysts or eggs) to cope with climate change-induced flow intermittence from rivers in continental climate. Owing to the high relative air humidity, the importance of riparian cover and the short duration of drying events, we expected taxonomically and functionally rich communities to persist in the dry streambed during phases with no surface water and to contribute to community recovery upon flow resumption. 3. To explore these ideas, we collected invertebrate communities in the riverbeds before, during and after drying from 10 intermittent rivers in the Czech Republic. We quantified the pool of organisms remaining alive in the dry riverbeds and determined its taxonomic and functional contribution to the recovery of benthic communities upon rewetting. 4. 83% of organisms collected, belonging to 22 taxa, were able to survive during the dry phase without producing desiccation-resistance forms. This pool of organisms contributed substantially both taxonomically and functionally to the quick recovery of benthic communities. The exponential decrease in taxonomic and functional richness implies an initial quick loss of sensitive taxa, while a pool of less sensitive taxa persisted long in the dry riverbeds hence contributing to the fast community recovery upon rewetting. 5. Survival rates of active aquatic macroinvertebrates devoid of specific desiccation-resistance adaptations have rarely been quantified. Likely promoted by benign environmental conditions prevailing on dry riverbeds in this study, their survival demonstrated the need to protect communities in dry riverbed and their adjacent riparian environments so that assemblages can recover rapidly from short periods without river flow. Riparian forest management along intermittent streams from continental climates could help conserve the value of dry streambeds as source of resilience for riverine communities.
ER  -

PAŘIL, Petr, Marek POLÁŠEK, Barbora LOSKOTOVÁ, Michal STRAKA, Julie CRABOT and Thibault DATRY. An unexpected source of invertebrate community recovery in intermittent streams from a humid continental climate. \textit{Freshwater Biology}. Oxford: Wiley, 2019, vol.~64, No~11, p.~1971-1983. ISSN~0046-5070. Available from: https://dx.doi.org/10.1111/fwb.13386.

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